Conclusion

This tutorial should have given you a good feel about what JavaScript is all about. However, we've only scratched the surface. It would take a lot more than three chapters to cover all the topics. Just in case you would like to learn more about this fun language, here is a short list of books/resources.

Designing with JavaScript, by Nick Heinle, published by O'Reilly
-- this is a good place start for non-progammers who want to pick up JavaScript quickly

JavaScript, the Definitive Guide, by David Flanagan, published by O'Reilly
-- this book covers JavaScript very thoroughly, from the core JavaScript to client-side JavaScript. It may be hard for beginners to pick up, but it is a good reference book.

JavaScript Guide by Netscape (http://developer.netscape.com/docs/manuals/communicator/jsguide4/index.htm)
-- this online guide gives you good overview of JavaScript as well as references.